| datetime | depth | wind_speed | wind_dir | wave_height | cloud_cover_10th | ropeless_id | surf_temp_f | lon_start | lat_start | lon_end | lat_end | notes | participants | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| deploy | ||||||||||||||
| C2306_2-1 | ||||||||||||||
| C2306_2-2 | ||||||||||||||
| O11 | ||||||||||||||
| N11 | ||||||||||||||
| L10 | ||||||||||||||
| K08 | ||||||||||||||
| recover | ||||||||||||||
| C2306_2-1 | ||||||||||||||
| C2306_2-2 | ||||||||||||||
| O11 | ||||||||||||||
| N11 | ||||||||||||||
| L10 | ||||||||||||||
| K08 | ||||||||||||||
Cruise Report: 2023-06-26 : 06-28
Pot survey
General notes
Three release cages were used in this survey: sites C2306_2-2, N11, and L10, respectively.
Participants
- Dave Secor (UMCES)
- Kirsten Silva (UMCES)
- Evan Kostelecky
- Capt. Brendan Harrington (F/V Integrity)
- Reilly (F/V Integrity mate, 27 June)
- Connor (F/V Integrity mate, 28 June)
Pot deployment cruise, 2023-06-27
Overall
- 03:00 Meet at F/V Integrity, prepare for departure.
- 03:30 Depart dock, transit to C2306_2-1 (control site).
- 06:04 Arrive at C2306_2-1.
- 06:06 Begin deploying pots.
- 06:10 Finish deploying pots, transit to C2306_2-2 (control site).
- 06:53 Arrive at C2306_2-2.
- 06:57 Begin deploying pots; release cage E36D included.
- 07:01 Finish deploying pots, transit to O11 (experimental turbine site).
- 07:47 Arrive at O11.
- 07:48 Begin deploying pots.
- 07:52 Finish deploying pots, transit to N11.
- 08:00 Arrive at N11.
- 08:02 Begin deploying pots; release cage E335 included.
- 08:06 Finish deploying pots. Transit to RTWB.
- 08:16 Arrive at RTWB.
- Take pictures and video. Transit to L10 (experimental turbine site).
- 08:25 Arrive at L10.
- 08:27 Begin deploying pots; release cage BCB included.
- 08:31 Finish deploying pots, transit to K08 (experimental turbine site).
- 08:49 Arrive at K08.
- 08:51 Begin deploying pots.
- 08:55 Finish deploying pots. Return to West Ocean City, MD.
- c12:30 Arrive in West Ocean City, MD.
Description
Survey deployment
Capt. Brendan Harrington and mates retrieved the pots from the Maryland Coastal Bays program and stacked the pots on the boat.
Wind speed was10-15 knots, coming from the N. Waves were 3-5 ft. Cloud cover was 60-80% of the sky. Surface temperature as reported by the satellite chart plotter was 70-72 F. Control sites ranged in depth from 93-133 ft, with turbine sites ranging from 87-116 ft.
Onset HOBO temperature loggers were attached to the ropeless cages and deployed at a control (C2306_2-2) and turbine (K08) site to log bottom temperature at 10 minute intervals during deployment.
Pot recovery cruise, 2023-06-28
Overall
- 02:30 Meet at F/V Integrity, prepare for departure.
- c02:50 Depart dock, transit to C2306_2-1.
- 05:14 Arrive at C2306_2-1.
- 05:20 Near block recovered.
- 05:30 Far block recovered; pot recovery complete. Transit to C2306_2-2.
- 06:24 Arrive C2306_2-2. Begin pot recovery approach.
- 06:24 Near block recovered.
- 06:36 Far block (release cage) recovered; pot recovery complete. Transit to O11.
- 07:22 Arrive O11. Begin pot recovery approach.
- 07:22 Near block recovered.
- 07:30 Far block recovered; pot recovery complete. Transit to N11.
- 07:44 Arrive N11. Begin pot recovery approach.
- 07:52 Near block recovered.
- 08:02 Far block (release cage) recovered; pot recovery complete. Transit to L10.
- 08:55 Arrive L10. Begin pot recovery approach.
- 08:57 Near block recovered.
- 09:06 Far block (release cage) recovered; pot recovery complete. Transit to K08.
- 09:25 Arrive K08. Begin pot recovery approach.
- 09:28 Near block recovered.
- 09:36 Far block recovered; pot recovery complete.
- 09:36 End survey, return to West Ocean City, MD.
- 12:30 Arrive in West Ocean City, MD.
Description
Wind speed was 10 knots from the N as reported by Capt. Harrington. Waves were 3 feet. Cloud cover was 30% of the sky, decreasing to 10% at the end of the survey. Surface temperature as reported by the satellite chart plotter was 71-72 F.
HOBO temperature loggers were successfully recovered from the rigs at C2306_2-2 and K08.
Dominant species were black sea bass (39) and Jonah crab (20). 38 of the 89 recovered pots were empty.
There was a significant difference in black sea bass catch between near and far sections of the lines (Poisson GLM, \(p <\) 0.05), but no difference between turbine and control sites (Poisson GLM, \(p >\) 0.05).
Total length (mm) and weight (g) of all black sea bass were recorded. Total lengths of other fish species were also recorded. Black sea bass ranged in total length from 195 - 570 mm, with a mean of 261 mm (minimum legal size 320 mm). Weights ranged from 70 - 570 g, mean of 211 g.
Black sea bass were significantly larger and heavier in the far pots as compared to near and turbine sites as compared to control sited (ANOVA, all \(p <\) 0.05).
Catch and size data summaries are shown in the sample summary section below.
Station information
Bottom temperature
Cruise map
Sample summary
Catch
| Black sea bass catch | |||||||
| N | min | average | med | max | sd | retained | |
|---|---|---|---|---|---|---|---|
| June - 2022 - Control | |||||||
| far | |||||||
| near | |||||||
| June - 2022 - Project | |||||||
| far | |||||||
| near | |||||||
| July - 2022 - Control | |||||||
| far | |||||||
| near | |||||||
| July - 2022 - Project | |||||||
| far | |||||||
| near | |||||||
| August - 2022 - Control | |||||||
| far | |||||||
| near | |||||||
| August - 2022 - Project | |||||||
| far | |||||||
| near | |||||||
| April - 2023 - Control | |||||||
| far | |||||||
| near | |||||||
| April - 2023 - Project | |||||||
| far | |||||||
| near | |||||||
| May - 2023 - Control | |||||||
| far | |||||||
| near | |||||||
| May - 2023 - Project | |||||||
| far | |||||||
| near | |||||||
| June - 2023 - Control | |||||||
| far | |||||||
| near | |||||||
| June - 2023 - Project | |||||||
| far | |||||||
| near | |||||||
Late-June 2023 catch
The blank bars on the right show the count of pots with no catch.